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905.1.2 - 905.2.5 has a direct exit to the outside of the building and 905.1.5.4 Audible Alarms. Audible alarm indicating. the building is three stories or less in height. appliances shall provide a distinctive sound which shall 2. Groups A, 3. E, F. H. M. and R :. R2. R3 and R4 not be used for any purpose other than that of a Lire Small Facilities. The manual tire alarm boxes alarm. Such devices shall provide a sound pressure required in 905.1 may be omitted in buildings level of 15 dBA above the average ambient sound level meeting all of the following requirements: in every occupied space within the building. The mini- :. The building is equipped with an automat- mum sound pressure Levels shall be: 70 dBA in buiid- ic tire detection or automatic sprinkler sys- ings of Group R occupancy, 90 dBA in mechanical tem covering all areas_ equipment rooms; and 60 dBA in all other occupancy 2. Actuation of the automatic tire detection or classifications. The maximum sound pressure level for automatic sprinkler system will activate the audible alarm indicating appliances shall not exceed fire alarm system. 130 dBA at the minimum hearing distance from the 3. Provisions are made to manually activate audible appliance. the fire alarm system at a minimum of one centrally located stat ion. 0905.1.5.5 Accessibility. Alarm systems required to _ 905.1.2 Manual fire alarm boxes shall be located not more be accessible by 11-4.1 shAll comply with 11-4.28. than 5 ft (1524 mm) from the entrance to each exit. 905.2 Automatic fire defection 905.1.3 Each floor shall be zoned separately. No one zone 905.2.1 Approved single- station or multiple- station smoke may exceed 15,000 sq ft (1394 m A zone indicator detectors shall be installed in accordance with NFPA 72, panel shall be located at grade level at the normal point of Chapter 2, within every dwelling and every dwelling unit fire department access or at a constantly attended building within an apartment house, condominium or townhouse; security control center. and every guest or sleeping room in a motel, hotel or dor- mitory and sleeping rooms in residential care /assisted liv- Exception: Automatic sprinkler system zones shall not ing occupancies. Where more than one detector is exceed the area permitted by NFPA 13. required to be installed within an individual dwelling unit, 905.1.4 Upon completion of the tire alarm system, all the detectors shall be wired in such a manner that the actu- ation of one alarm will actuate ail of the alarms in the indi- alarm initiating devices and circuits, alarm indicating vidual unit. appliances and circuits, supervisory signal initiating devices and circuits, signaling line circuits and primary 905.2.2 In dwellings and dwelling units, a smoke detector and secondary power supplies shall be subjected to a 100 shall be mounted on the ceiling or wall at a point central - percent acceptance test in accordance with NFPA 72. ly located in the corridor or area giving access to each group of rooms used for sleeping purposes. Where the 905.1.5 Alarm indicating appliances 905.1.5.1 Required. Alarm indicating appliances list- dwelling or dwelling unit contains more than one story, ed for the purpose shall be provided. detectors are required on each story including basements, but not including uninhabitable attics, and shall be located in close proximity to the stairway leading to the floor 0905.1.5.2 Accessibility. Every required tire alarm above. system shall include visible alarm indicating appli- ances in public and common areas. For more specific 905.2.3 In dwelling units with split levels and without an accessibility requirements related to alarm indicating intervening door between the adjacent levels, a smoke appliances, refer to 905.1.5.5 and 11-4.28. detector installed on the upper level shall suffice for the adjacent lower level provided that the lower level is less 905.1.5.3 Activation. The alarm indicating appliances than one full story below the upper level. shall be automatically activated by all of the following where provided: 905.2.4 Smoke detectors connected to a fire alarm system 1. Smoke detectors, other than single- station or shall be installed in accordance with NFPA 72. multiple - station smoke detectors, as required by 905.2. Activation of the alarm system by smoke 905.2.5 In dwelling, dwelling units and sleeping rooms in detectors shall be by either two cross -zoned residential care/assisted living occupancies, smoke detec- smoke detectors within a single protected area or tors shall be hardwired into an ac electrical power source a single smoke detector monitored by an alarm and shall be equipped with a monitored battery backup in verification zone or an approved equivalent all new construction. A monitored battery power source method. shall be permitted in existing construction. 2. Sprinkler water -flow devices; 3. Manual fire alarm boxes: and 4. Other approved types of automatic lire detection device suppression systems. FLORIDA BUILDING CODE- BUILDING 3.5